CN103050746B - T-shaped microwave switch driven by motor - Google Patents

Abstract

The invention relates to a T-shaped microwave switch driven by a motor, which comprises a d-sub connector (1), a circuit board set (5), a stator set (6), a rotor set (7), a transmission set (8), a cover board set (9) and a base set (10). The circuit board set (5) is fixed above the stator set (6); the stator set (6) is fixed above the cover board set (9); and the rotor set (7) and the transmission set (8) are arranged between the stator set (6) and the cover board set (9), wherein the rotor set (7) is arranged on a rotor shaft (48) on the cover board set (9) and the transmission set (8) is fixed on the cover board set (9). The microwave switch disclosed by the invention has low driving power; an electromagnetic system is modularized; the microwave switch has low difficulty in assembly and production; double layers of magnetic steels are used for controlling driving magnetic steels; a reed has large retentivity; and the switch has strong vibration and shock resistant performance.

Description

A T-shaped microwave switch driven by a motor

technical field

The invention relates to a T-shaped microwave switch.

Background technique

T-type microwave switches are mainly used in communication links of satellites, spaceships and other aerospace equipment to switch microwave signal paths.

In aerospace applications, not only the microwave parameters of the switch must meet the requirements of use, but also must meet certain mechanical index requirements, so as to reliably transmit microwave signals under harsh conditions such as vibration and impact, improve the reliability of the entire product, and meet Use requirements in complex situations such as space environment.

The existing motor-type T-switches have poor vibration and shock resistance, and can only be put into use after being stabilized in the orbit, and cannot work in the active launch section.

Contents of the invention

The technical problem of the present invention is: to solve the problem of insufficient mechanical properties of the existing motor-type microwave switch, to provide a T-shaped microwave switch driven by a motor with high mechanical performance, and to improve the anti-vibration shock performance of the microwave switch.

The technical solution of the present invention is: a T-type microwave switch driven by a motor, including a d-sub connector, a circuit board group, a stator group, a rotor group, a transmission group, a cover group and a base group, and a circuit board The stator group is fixed above the stator group, the stator group is fixed above the cover group, the rotor group and the transmission group are arranged between the stator group and the cover group, the rotor group is installed on the rotor shaft on the cover group, and the transmission group is fixed on the On the cover group; the stator group includes six stator windings uniformly distributed along the circumference, and the six stator windings are separated by 180° as a working group, and the d-sub connector receives external control signals. The circuit board group is based on The control signal supplies power to the stator group, the rotor group and the transmission group; the base group includes four coaxial connectors, and the four coaxial connectors are respectively located on the three vertices and the center of gravity of the equilateral triangle; the described The rotor group includes upper magnets and lower magnets, where the upper magnets include two large magnets and four small magnets, six magnets are evenly distributed along the circumference and two large magnets are distributed at 180° in the circumferential direction , the lower magnet consists of two lower magnets distributed at 180° in the circumferential direction, the polarity of the large magnet is opposite to that of the small magnet, and the polarity of the large magnet is The polarity is opposite to the polarity of the lower magnetic steel after magnetization; the cover plate group includes an upper fixed plate, a lower fixed plate and a cover plate, the rotor shaft is located on the cover plate, and the lower fixed plate plane passes through the rotor shaft and is installed on the cover plate On the top, the upper fixing plate is located above the lower fixing plate; the transmission group includes three groups of reeds with the same structure, and each reed group includes a long reed, a short reed, a long reed drive rod, a short reed Drive rod, drive piece, long reed drive magnet, short reed drive magnet, the center of the drive piece passes through the rotor shaft, the long reed drive magnet and the short reed drive magnet are fixed at both ends of the drive piece, Both the long reed driving magnet and the short reed driving magnet are positioned up and down by the upper and lower fixing plates, the short reed is fixed on the driving piece by the short reed driving rod, and the long reed is fixed by the long reed driving rod On the driving piece, the long reed corresponds to a side of the regular triangle, and the short reed corresponds to the line connecting the center of gravity and the apex of the regular triangle; the long reed drives the magnet and the short spring The magnetized polarity of the sheet drive magnet is opposite to the magnetized polarity of the large magnet; through the external control signal to magnetize different magnets, the long and short reeds that are perpendicular to each other will be controlled accordingly The coaxial connectors are turned on to form three different forms of T-shaped microwave channels.

The three sets of reed sets with the same structure are at different levels.

Compared with the prior art, the present invention has the advantages that: the rotor group of the microwave switch of the present invention adopts an arrangement of upper magnets and lower magnets, wherein the upper magnets include two large magnets and four small magnets, six The two magnets are evenly distributed along the circumference and the two large magnets are distributed at 180° in the circumferential direction. The lower magnet includes two lower magnets distributed at 180° in the circumferential direction. The polarity of the large magnets after magnetization It is opposite to the polarity after magnetization of the small magnet steel, and the polarity of the magnetization of the large magnet steel is opposite to that of the lower magnet steel. The large magnets on the upper layer generate repulsion, and the lower magnets on the lower layer generate suction and act on the long reed drive magnets and short reed drive magnets in the transmission group at the same time, so that the reed group moves faster, thus improving the switch. Response speed; after the reed group is kept in the conduction state stably, the holding force provided by the upper and lower layers of magnetic steel can greatly improve the anti-vibration and shock performance of the microwave switch as a whole. Through the test, the design of the present invention is adopted The impact resistance of the T-type microwave switch can reach 2000g, and the root mean square of random vibration is 28.7g ² /Hz.

Description of drawings

Fig. 1 is an outline drawing of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the present invention;

Fig. 3 is an exploded schematic diagram of Fig. 2;

Fig. 4 is the installation schematic diagram of circuit board group of the present invention;

Fig. 5 is a schematic structural view of the stator group of the present invention;

Fig. 6 is a structural schematic diagram of the rotor group of the present invention;

Fig. 7 is a structural schematic diagram of the cover plate group of the present invention;

Fig. 8 is a schematic structural view of the transmission group of the present invention;

Fig. 9 is a structural schematic diagram of a single set of reed sets in the transmission set of the present invention;

Fig. 10 is a schematic structural view of the base set of the present invention;

Fig. 11 is a top view of the positional relationship between the coaxial connector and the long and short reeds of the present invention;

Fig. 12 is a schematic diagram of the circuit control and path state of the microwave switch of the present invention.

Detailed ways

As shown in Figures 1, 2 and 3, the T-type microwave switch of the present invention includes a d-sub connector 1, a housing group 3, a circuit board group 5, a stator group 6, a rotor group 7, a transmission group 8, a cover group 9 and The base set 10 is composed. The circuit board group 5 , the stator group 6 , the rotor group 7 , the transmission group 8 and the cover plate group 9 are all located inside the shell group 3 . The d-sub connector 1 is fastened to the housing group 3 by mounting screws 2 , and the housing group and the cover board group 9 are fixed together by screws 4 . The circuit board group 5 is fixed above the stator group 6 , and the stator group 6 is fixed on the cover plate group 9 . The base set 10 is installed under the cover plate set 9 . The rotor set 7 and the transmission set 8 are arranged between the stator set 6 and the cover plate set 9 , and the drive set 8 and the cover plate set 9 are assembled together.

As shown in Figure 4, circuit board group 5 is made up of circuit board 12, first support stud 13 and wire 11, and circuit board group 5 is fixed above stator group 6 by four first support studs 13, and circuit board group 5 One end of the circuit board group 5 is connected to the d-sub connector 1 through a wire 11, the d-sub connector 1 receives external control signals, and the other end of the circuit board group 5 is connected to the stator winding 15 in the stator group 6. The external circuit transmits the pulse control signal to the stator winding 15 through the d-sub connector 1 and the circuit board 12, and the stator winding 15 generates a magnetic field to make the rotor set 7 rotate to a corresponding position and keep it stable.

As shown in Figure 5, the stator group 6 is made up of four second supporting studs 18, a fixed plate 17, a stator 16 and six stator windings 15 wound on the pole piece 14 of the stator 16, and the circumference of the six stator windings 15 is uniform. There are three sets of windings separated by 180°. The stator 16 is fixed on the fixing plate 17, and is fixed on the cover plate group 9 through the second support stud 18.

As shown in Figure 6, the rotor group 7 consists of rotor screws 19, rotor 20, upper magnetic steel plate 22, bearing 26, two large magnetic steel 28, four small magnetic steel 27, three third supporting studs 29, two A lower magnetic steel 30 and a lower magnetic steel plate 32 constitute. The rotor 20 is provided with a middle hole 21, and the rotor 20 is set on the upper end of the upper magnetic steel plate 22 through the middle hole 21. The polarity of the large magnetic steel 28 and the small magnetic steel 27 are opposite (magnetized in the up and down direction), and they are glued with epoxy glue. Connect respectively in the large magnetic steel groove 24 and the small magnetic steel groove 23 of the upper magnetic steel plate 22, the polarity of the lower magnetic steel 30 is opposite to that of the large magnetic steel 28, and the lower magnetic steel that is fixed on the lower magnetic steel plate 32 In the mounting groove 33, the lower magnetic steel 30 corresponds to the vertical position of the large magnetic steel 28, and the three third support studs 29 pass through the upper fixing hole 25 and the lower fixing hole 31, and the upper magnetic steel plate 22 and the lower magnetic steel plate are connected to each other. Steel discs 32 are fixed together. The rotor set 7 is fixed on the rotor shaft 48 of the cover plate set 9 via rotor screws 19 and bearings 26 .

The rotor group 7 and the stator group 6 in the present invention form a motor structure, and the motor structure is a conventional 60-degree limited-rotation-angle motor, which can rotate clockwise or counterclockwise. The rotor group 7 drives the upper magnetic steel plate 22 and the lower magnetic steel plate 32 to rotate, and the upper magnetic steel plate 22 is located above the upper fixed plate 41, and the lower magnetic steel plate 32 is located directly below the lower fixed plate 43; the upper fixed plate 41 and the lower fixed plate 43 is fixed on the cover plate 52 and is relatively stationary.

As shown in Figures 7 and 8, the cover plate group 9 is composed of an upper fixed plate 41, a lower fixed plate 43, three fourth support studs 47, a cover plate 52, and 18 stop rods 53, and the stop rods 53 can limit The reed set guarantees its strictly vertical action. Three the 4th support studs are screwed in the cover plate screw hole 49 through upper fixed plate fixed hole 44, lower fixed plate fixed hole 46, upper fixed plate 41, lower fixed plate 43 are fixed on the cover plate 52, at this moment On the upper fixed plate 41, two magnetic steel sleeves 42 that are mutually distributed at 180° and the lower fixed plate 43 are mutually overlapped with two magnetic steel sleeves 45 that are distributed at 180°, and the driving magnets of each reed group The steel is used as an axial limit to ensure that the reed group can only move in the vertical direction.

As shown in Figure 3, Figure 8, and Figure 9, the transmission group 8 is composed of three sets of reed sets 57, 58, and 59 with the same structure but different overall heights. Taking the first reed set 57 as an example, the first reed set Group is made up of long reed 64, short reed 39, long reed drive bar 40, short reed drive bar 38, drive plate 36, long reed drive magnet steel 35, short reed drive magnet steel 34. The long reed driving rod 40 and the short reed driving rod 38 pass through the long driving rod hole 51 and the short driving rod hole 50 of the cover plate group 9 respectively, the lower end of the long reed driving rod 40 is fixed with the long reed 64, and the upper end is connected with the driving rod. Sheet 36 is fixed; Short reed driving rod 38 lower ends are fixed with short reed 39, and the upper end is fixed with driving sheet 36. The long reed driving magnetic steel 35 and the short reed driving magnetic steel 34 of the first reed group 57 are fixed on the two ends of the driving piece 36, respectively by the upper fixed plate magnetic steel sleeve 42 and the lower fixed plate magnetic steel sleeve 45. Axially limited, the middle hole 37 on the driving piece 36 passes through the rotor shaft 48, so that the first reed group can move up and down in the area defined by the upper and lower magnetic steel sleeves. The short reed 60 and the long reed 62 identified in the figure belong to the second reed group 58 ; the short reed 63 and the long reed 61 belong to the third reed group 59 . Three sets of reed groups can move up and down, and at this time, three short reeds and three long reeds are restricted to move in the cavity 65 of the base.

As shown in FIG. 10 , the base set 10 is composed of four coaxial connectors 56 and a base 54 . Four coaxial connectors 56 are installed in the four threaded holes 55 of the base 54, and the tails of the coaxial connectors 56 are cylindrical. The projection relationship between the three long reeds, the three short reeds and the coaxial connector is shown in Figure 11: the three long reeds form a Arranged in a Y shape, the RF interfaces at the vertices of the regular triangle can be connected in pairs, and the three short reeds are arranged in a Y shape; the coaxial connectors at the center of gravity and the vertices of the regular triangle can be connected.

As shown in Figure 12, when the power supply is connected between 1- and C+, the motor rotates to the corresponding position of state "1", at this time the first reed set 57 repels with the large magnet 28 and attracts the lower magnet 30, The downward movement connects the corresponding coaxial connector, while the second reed group 58 and the third reed group 59 are attracted to the small magnetic steel 27 and move upward, the corresponding coaxial connector is disconnected, that is, the first reed The short reed 39 and the long reed 64 of the group 57 are pressed down and connected, the long reed 61 and the short reed 63 of the second reed group 58 move upwards and disconnect, the short reed 60 of the third reed group 59, The long reed 62 moves upwards to disconnect, forming a state "1"; similarly, when the power is connected between 2- and C+, the state "2" is formed; when the power is connected between 3- and C+, the state "3" is formed. Through the external control signal, any set of reed sets can be controlled to press down to conduct the corresponding coaxial connector, and the other two sets of reed sets can be lifted to form three different forms of T-shaped microwave channels. The diodes identified in FIG. 12 are installed on the circuit board 12 to discharge the transient current when the stator winding 15 is de-energized.

The content that is not described in detail in the description of the present invention belongs to the well-known technology of those skilled in the art.

Claims (2)

1. the T-shaped microwave switch of a motor-type driving, it is characterized in that comprising: d-sub connector (1), circuit board group (5), stator pack (6), rotor set (7), transmission group (8), cover plate group (9) and pedestal group (10), circuit board group (5) is fixed on stator pack (6) top, stator pack (6) is fixed on cover plate group (9) top, rotor set (7) and transmission group (8) are arranged between stator pack (6) and cover plate group (9), wherein rotor set (7) is arranged on the armature spindle (48) in cover plate group (9), transmission group (8) is fixed in cover plate group (9), described stator pack (6) comprises six stator winding (15) be uniformly distributed along the circumference, be separated by six stator winding (15) 180 ° be a working group, d-sub connector (1) receives outside control signal, and circuit board group (5) is the power supply of stator pack (6), rotor set (7) and transmission group (8) according to described control signal, described pedestal group (10) comprises four coaxial connectors (56), in three summits that four coaxial connectors (56) lay respectively at equilateral triangle and center of gravity, described rotor set (7) comprises upper strata magnet steel and lower floor's magnet steel, its at the middle and upper levels magnet steel comprise two large magnet steel (28) and four little magnet steel (27), six magnet steel are uniformly distributed along the circumference and two large magnet steel (28) become 180 ° of distributions in a circumferential direction, lower floor's magnet steel comprises the lower magnetic steel (30) that two become 180 ° of distributions in a circumferential direction, polarity after polarity after large magnet steel (28) magnetizes magnetizes with little magnet steel (27) is contrary, and large magnet steel (28) magnetize after polarity magnetize with lower magnetic steel (30) after polarity contrary, described cover plate group (9) comprises upper mounted plate (41), bottom plate (43) and cover plate (52), armature spindle (48) is positioned on cover plate (52), bottom plate (43) plane is arranged on cover plate (52) through armature spindle (48), and upper mounted plate (41) is positioned at bottom plate (43) top, described transmission group (8) comprises the identical reed group (57 of three groups of structures, 58, 50), each reed group includes long reed (41), short reed (39), long reed drive rod (40), short reed drive rod (38), driving chip (36), long reed drives magnet steel (35), short reed drives magnet steel (34), the center of driving chip (36) is through armature spindle (48), long reed drives magnet steel (35) and short reed to drive magnet steel (34) to be fixed on the two ends of driving chip (36), long reed drives magnet steel (35) and short reed to drive magnet steel (34) all to be located up and down by upper mounted plate (41) and bottom plate (43), short reed (39) is fixed on driving chip (36) by short reed drive rod (38), long reed (41) is fixed on driving chip (36) by long reed drive rod (40), a limit of the described corresponding described equilateral triangle of long reed (41), the described corresponding center of gravity of described equilateral triangle of short reed (39) and the line on summit, polarity after polarity after described long reed drives magnet steel (35) and short reed to drive magnet steel (34) to magnetize magnetizes with described large magnet steel (28) is contrary, by the control signal of outside, the stator winding (15) in stator pack (6) is powered, control the position of rotor set (7), and then control orthogonal long reed (41) and short reed (39) by corresponding coaxial connector (56) conducting by transmission group (8), form three kinds of multi-form T-shaped microwave paths.

2. the T-shaped microwave switch of a kind of motor-type driving according to claim 1, is characterized in that: the reed group (57,58,50) that three groups of described structures are identical is in differing heights layer.